SEFSC Atlantic surveys 1992

NOAA Southeast Fisheries Science Center (SEFSC)

Dataset credit

K.D. Mullin and R. Ford, NOAA Southeast Fisheries Science Center


Primary contact Lance Garrison NOAA Southeast Fisheries Science Center
Data entry Benjamin Best Duke University



An Atlantic Ocean ship survey was conducted by NOAA Southeast Fisheries Science Center in 1992 to study marine mammals and pelagic apex predators. The primary area of operation was in the Blake Plateau area of the Atlantic Ocean between 28 degree and 35 degree North latitude and from the coastal boundary to the Exclusive Economic Zone.
During 28 survey days, at least 10 cetacean species were sighted, including:
1) Atlantic spotted dolphin
2) Cuvier's beaked whale
3) Dwarf sperm whale
4) False killer whale
5) Pantropical spotted dolphin
6) Pygmy killer whale
7) Globicephala sp.
8) Sperm whale
9) Spinner dolphin
10) Standard Bottlenose dolphin
The dataset is accompanied by transect data which is provided as a separate file.


The purpose of this survey is to examine the distribution and estimate abundance of cetaceans in U.S. waters.
Specific objectives of this survey are:
1. Complete a line-transect survey of the study area for marine mammals during the daylight hours, following prescribed course transects.
2. Deploy longline fishing gear during the evening hours for the propose of catching and sampling pelagic apex predators (primarily swordfish, other billfish, tunas, and sharks).
3. Collect associated oceanographic data.

Supplemental information

[2020-09-30] The following invalid species names were corrected according to the Integrated Taxonomic Information System (ITIS).
Bonaparte's Gull: Larus philadelphia (176839) => Chroicocephalus philadelphia (824040)
Bridled Tern: Sterna anaethetus (176897) => Onychoprion anaethetus (824104)
Laughing Gull: Larus atricilla (176837) => Leucophaeus atricilla (824079)
Red Phalarope: Phalaropus fulicaria (554376) => Phalaropus fulicarius (176734)
Royal Tern: Sterna maxima (176922) => Thalasseus maximus (824142)
Sooty Tern: Sterna fuscata (176894) => Onychoprion fuscatus (824105)


Southeast Fisheries Science Center, Marine Fisheries Service, NOAA. 1992. OREGON II Cruise. Cruise report. 92-01 (198).



The dataset contains information necessary to locate the species sightings observed in the survey. The structure of the dataset was defined by NOAA Southeast Fisheries Science Center. Note that the dataset is a subset of the larger, complete dataset collected in the survey which includes environmental information. The columns before LineNo are applied to the shapefile only. The following information is not included in the dataset but will be found in the master data. For details, please contact NOAA Southeast Fisheries Science Center. Track; Speed; GPS Status; Observers; Wind direction; Weather; Sea state; Swell; Visibility; Turbidity; Sunlight; Water depth; Water color; Water temperature; Sighting angle; Effort status.

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
linenoLine number
cruisenoCruise No.
dateDate of the observation
timeTime of the observation
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
trackTrack No
gpswarningGPS Warning
leftobsLeft observer
rightobsRight observer
datarcdrdefinition not provided
weatherWeather code
seastateSea state
versunposVertical sun position
radsunposRadial sun position
watercolorWater color
sightingnoSighting No.
shipidShip ID
oneffortIndicator of on or off effort
watertempWater temperature in degree Celsius
waterdepthWater depth
spcodeSpecies code defined by provider
species_tsnITIS Taxonomic Serial Number added by OBIS-SEAMAP
speciesSpecies name
scientificSpecies scientific name.
herdsizeHerd size
calvesNumber of calves
ontransectIndicator of on or off transect
cookiecttrCookie cutter
gpclassGP class
behaviorBehavior code
cuetimeCue time
cuelatCue latitude
cuelonCue longitude
obsposObserver position
obscodeObservation code
wdepthmWater depth in meters
geomGeometry field added by OBIS-SEAMAP
oidUnique ID number (generated by OBIS-SEAMAP)
Marine mammals77
Sea turtles0
Rays and sharks0
Other species178
Non spatial0
Non species49
Date, Begin1992-01-04
Date, End1992-02-10
Temporal prec.111111
Latitude24.23 - 35.02
Longitude-86.79 - -74.61
Coord. prec.4 decimal digits
Data typeAnimal sighting
EffortYES (ID: 4)
Traveled (km)3,625
Effort hours199
Contr. through
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Shared with OBIS
GBIF (via DOI)
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